

align-content and justify-content are now supported on grid layouts ( bug 1151214).align-self and justify-self are now supported on grid layouts ( bug 1151213).The implied minimum size of grid Items, that is the special min-width and min-height auto behavior has been implemented ( bug 1176775).Gutters, that is the grid-column-gap, grid-row-gap, and grid-gap properties are now supported ( bug 1176792).Our implementation of CSS Grids has been improved and is no more considered experimental it is now activated by default in nightly and developer edition, but not for beta and release ( bug 1000592):.word-spacing now allows percentage values ( bug 1038663).

Firefox will not run at all without the following libraries or packages:.Please note that GNU/Linux distributors may provide packages for your distribution which have different requirements. Macintosh computer with an Intel x86 processor.Pentium 4 or newer processor that supports SSE2.To install Firefox on a Windows XP system, because of Windows restrictions, the user will have to download Firefox 43.0.1 and then update to the current release.

Please note that 64-bit builds of Firefox are only supported on Windows 7 and higher. Windows Operating Systems (32-bit and 64-bit)
